JPH0522826B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an air conditioner control device, and particularly to control of the blowing direction of the air conditioner.

[Prior Art] In conventional air conditioners, it was common to manually adjust the direction of the air blown from a fan built into the indoor unit using flaps or louvers vertically or horizontally. . In addition, some methods include attaching a servo motor to the flap to automatically change the wind direction up or down when switching between heating and cooling modes, or using a screw-type method in the louver to periodically change the wind direction. .

[Problems to be solved by the invention] Since conventional air conditioners are configured as described above, it is possible to manually change the wind direction, automatically change the wind direction only when switching between cooling and heating, or simply change the wind direction. They only automatically changed the direction of the wind so that it was evenly distributed over the entire surface, but did not make fine-grained automatic adjustments to the wind direction. Therefore, for example, when there is a large temperature difference between the room temperature and the set room temperature, such as when starting operation of the air conditioner/heater, more cold or warm air is sent to areas where there are people, and when the temperature difference becomes smaller, the air is sent evenly throughout the room. There was a problem in that it was not possible to meet the detailed demands of users.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an air conditioner control device that can finely adjust the direction of air blowing from an indoor unit of an air conditioner.

[Means for Solving the Problems] The air conditioner control device according to the present invention includes a wind direction changing means for periodically changing the blowing air direction to each section divided into predetermined machines, a room temperature sensor, a room temperature setting device, etc. a receiving direction changing means for changing the high-sensitivity direction of a receiving section that receives radio signals from a remote control unit having a remote control unit; A temperature difference detection means between the room temperature and the current room temperature; and a means for detecting a temperature difference between the room temperature and the current room temperature; The wind direction changing means is provided with means for controlling the wind direction changing means so that the wind direction is gradually reduced in sections farther from the specific section.

[Function] In the present invention, it is assumed that there is a person near the position where the remote control unit is placed, and the receiving unit that changes the high sensitivity direction detects in which section of the direction of the blowing wind the position is. Control is performed so that the time period during which the blowing air direction is in the detected remote control section is lengthened when the temperature difference between the set room temperature and the current room temperature is large, and when the temperature difference is small, the time period during which the blowing air direction is directed toward the remote control section is shortened. In this way, for example, when the temperature difference is large, more air is sent especially to areas where people are present, and when the temperature difference is small, the air is sent evenly to all rooms, and fine-grained control is automatically performed.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing an electric circuit of this embodiment. In the figure, 1 is the indoor unit of the air conditioner, 2
is an indoor fan consisting of 2a and motor blade 2b,
3 is a louver that determines the direction 4 of the air blowing from the indoor fan; 5 is a wind direction changing means that changes the direction of the louver 3 and periodically changes the blowing air direction 4 to eight sections a to h; It consists of a servo motor 6 and a drive circuit 7 for this motor.
8 is a remote controller unit (hereinafter referred to as a remote control unit); 9 is a remote controller built into the remote controller unit 8 (hereinafter referred to as a remote controller); 10 is a wireless remote controller 9 attached to the indoor unit 1 so that the high sensitivity direction can be changed. The receiving circuit 11 that receives the signal transmitted by the servo controller is a receiving direction changing means for changing the high sensitivity direction of the receiving circuit 10 to each of the eight sections a to h, which are the same as the airflow direction 4. It consists of a motor 12 and a drive circuit 13 for this motor. 14 is
The reception sensitivity detection circuit 15 detects that the high sensitivity direction of the reception signal from the remote control 9 of the reception circuit 10 matches the direction of the remote control 9, so that the remote control unit 8 is set to one of the directions a to h. 16 is a microcomputer (hereinafter referred to as a microcomputer) which detects whether the signal is in the section of the remote controller 9 and inputs the signal to the microcomputer described later. It also consists of an input circuit 17 that inputs signals from other sensors, a central processing unit (hereinafter referred to as CPU) 18, a memory 19 and a drive circuit 13, an indoor fan 2, and an output circuit 20 that outputs control signals to other devices. . 2
1 is this microcomputer 16 and reception sensitivity detection circuit 1
5. A control circuit consisting of drive circuits 7 and 13.
22 is a room temperature sensor that detects the current room temperature Tr; 23
24 is a temperature difference detection means, which includes a room temperature sensor 22 and a room temperature setter 23.
From there, the remote control 9 passes through the receiving circuit 10 to the microcomputer 1.
6, the microcomputer 16 calculates and detects the temperature difference To-Tr between the set room temperature To and the current room temperature Tr. 25 indicates a time period in which the blowing air direction 4 is in a certain section (hereinafter referred to as a remote control section) of the remote control unit 8 detected by the remote control section detection means 14 in accordance with the temperature difference detected by the temperature difference detection means 24. Wind direction change control means for controlling the wind direction change means 5 to make the wind direction longer;
It is executed by the microcomputer 16.

Next, the operation will be explained with reference to FIGS. 3, 4, and 5. Figure 3 shows the memory 19 of the microcomputer 16.
FIG. 4 is a flowchart showing a program for controlling the wind direction change stored in FIG. 4, which shows the time when the wind direction shown in FIG. temperature difference between
A diagram showing the relationship between To and Tr, Figure 5 is 8 sections a to
This is a diagram showing the relationship between the rotation distance from the remote control section detected in h to another section and the ratio of the time when the louver 3 stops in that section to the stop time in the remote control section (stop time ratio), The stop time ratio is made smaller as the distance from the remote control section increases. Figure 4,
It is assumed that the relationship shown in FIG. 5 is stored in the memory 19 in advance.

First, in step 30, the receiving circuit 10 is rotated, and in step 31, a signal from the remote controller 9 is received. Next, in step 32, the sensitivity data detected by the receiving sensitivity detection circuit 15 is stored in the memory 19 in association with the rotational position of the receiving circuit 10, and in step 33, the receiving sensitivity and position are calculated, and the highest sensitivity position, that is, the remote control section is stored. Detect. Next, in step 34, the temperature difference To-Tr is calculated from the current room temperature data and the set room temperature data of the received data, and in step 35
From this temperature difference, the louver stop time in the remote control section with the relationship shown in FIG. 4 is calculated. Furthermore, in step 36, the current direction of the louver 3,
That is, by knowing in which section from a to h the blowing air direction 4 is located, the rotation distance from the remote control section is obtained, and from this and the relationship shown in Fig. 5, the stop time ratio in that section is determined. A calculation process is performed in which the value obtained by multiplying the louver stop time in the remote control section obtained in step 35 is set as the stop time in this section. Next, in step 37, the time during which the louver 3 is stopped at the current position is compared with the time calculated in step 36, and if the calculated time has been exceeded, the process proceeds to step 38 and the louver 3 is moved. If the distance is not exceeded, the process proceeds to step 39, and a control signal is output to the drive circuit 7 to keep the louver 3 stopped. The above operation is repeated to control the direction in which the louver 3 faces, that is, the wind direction 4.
In the above steps, steps 32 and 33 are for executing the remote control section detection means 14, step 34 is for executing the temperature difference detection means 24, and steps 35 to 39 are for executing the wind direction change control means 25, respectively.

In this way, if the remote control section detecting means 14 detects the location where the user is located as the section where the remote control unit 8 is located, the louver 3 will be directed to that remote control section while the temperature difference between the room temperature and the set temperature is large. The time during which the air is stopped, that is, the time during which the blower is facing in the air direction 4, is increased to improve the comfort of the user, and when the temperature difference becomes smaller, the time during which the air is stopped is reduced to reduce the temperature of the entire room. Aim for uniformity.

In the above embodiment, an example is shown in which the direction of the blowing air is divided into eight equal parts, but it may be divided into any number of parts, and the stop time in the remote control section is not limited to the characteristics shown in Fig. 4. Although the louver is controlled to stop at the same time, it may be moved continuously and the moving speed may be changed by the reciprocal of the stop time ratio shown in FIG. 5 for each section. Further, the stop time ratio for each section is not limited to that shown in FIG. 5, and the stop time ratio may be changed depending on the temperature difference. For example, while the temperature difference is large, the stop time can be changed for each section, but when the temperature difference is small, the stop time for each section can be made equal.

As described above, various fine-grained control of the blowing air direction becomes possible.

[Effects of the Invention] As described above, the present invention automatically detects the location of the remote control as a section where a person is present, and determines the time when the direction of the blowing air is present in that section according to the temperature difference between the current room temperature and the set room temperature. By changing the above, the time when the blowing wind direction is present in the section other than the section where the person is present becomes smaller as the section is further away from the section where the person is.
This has the effect of providing an air conditioner control device that can automatically finely control and optimize the air conditioning conditions in the section where people are present and in the vicinity, thereby improving comfort, without any manual operation.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing an electric circuit of this embodiment, FIG. 3 is a flowchart showing the operation of this embodiment, and FIGS. FIG. 5 is a diagram for explaining the operation of this embodiment. In the figure, 1 is an indoor unit, 2 is an indoor fan, 3 is a louver, 4 is a blowing air direction, 5 is a wind direction changing means, 9 is a remote control, 10 is a receiving circuit, 11 is a receiving direction changing means, 14 is a remote control section detection means, 1
5 is a microcomputer, 21 is a control circuit, 22 is a room temperature sensor, 23 is a room temperature setting device, 24 is a temperature difference detection means,
25 is a wind direction change control means. The same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of Claims] 1. A remote control unit that includes a room temperature sensor, a room temperature setting device, an operation switch, and a remote controller (hereinafter referred to as a remote control) that sends out their detection signals, operation command signals, etc. as wireless signals, and a remote control unit that is built into an indoor unit. , an air conditioner control device comprising a receiving circuit that receives a wireless signal from the remote controller, and a control circuit that outputs a control signal to each part of the air conditioner, in which the direction of the air blowing from the indoor unit is divided into a predetermined number. A wind direction changing means for changing the wind direction periodically in each section, a receiving direction changing means for changing the high sensitivity direction of the receiving circuit, a remote control section for detecting the section where the remote control unit is located by the receiving section receiving a radio signal from the remote control. A detection means, a temperature difference detection means between the set room temperature and the current room temperature, and a temperature difference detected from this means. An air conditioner control device comprising: a wind direction change control means for controlling the wind direction change means so that a certain time period other than the remote control section is gradually decreased in sections farther from the remote control section. 2. The air conditioner control device according to claim 1, wherein the wind direction changing means is means for stopping the blowing air direction for a predetermined period of time for each of the divided sections. 3. The air conditioner control device according to claim 1, wherein the wind direction changing means is means for continuously changing the direction of the blowing air at different speeds for each of the divided sections.